OVERVIEW

Official designation: Allen-Bradley 810-A12C (Bulletin 810, Inverse Time Current Relay)

Role/Application: A magnetically operated current relay that provides inverse time-current delay, primarily used for overcurrent protection in AC or DC motor control and industrial circuits.

KEY SPECS SUMMARY

Power: 600V AC maximum coil voltage rating

Interfaces / Ports: Terminal block connections for power and control

Indicators: No electrical indicators, relies on mechanical action

Operating Temp: Inverse time delay is independent of ambient temperature

Platform / Compatibility: Inverse time current relay with dashpot

Limit: 56 A continuous current rating, 7200 VA make AC

Lifecycle: Refer to the latest manufacturer manual.

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What is the continuous current rating for the Allen-Bradley 810-A12C relay?

A: The continuous carrying current rating for this specific model is 56 A.

Wiring & Installation:

Q: What are the contact reset options available for the Bulletin 810 series relays?

A: The relays are commonly supplied with an automatic reset, but a hand reset option may be available.

Troubleshooting & Compatibility:

Q: How is the time delay characteristic of the Bulletin 810 relay achieved and adjusted?

A: The time delay is achieved by a dashpot mechanism utilizing silicone fluid, and the time is adjustable.

Replacement & Upgrades:

Q: What is the typical NEMA rating designation for the control circuit contacts on this relay?

A: The control circuit contacts typically carry a NEMA A600 rating designation.